ATI LPN
PN ATI Comprehensive Predictor
1. What are the primary causes of respiratory acidosis?
- A. Hypoventilation and lung disease
- B. Hyperventilation and pneumonia
- C. Increased oxygen saturation and tachypnea
- D. Dehydration and hypoxia
Correct answer: A
Rationale: The correct answer is A: Hypoventilation and lung disease. Respiratory acidosis occurs when there is an accumulation of CO2 in the body due to inadequate ventilation. Hypoventilation, which reduces the elimination of CO2, and lung diseases that impair gas exchange are the primary causes. Choice B is incorrect because hyperventilation, not hypoventilation, leads to respiratory alkalosis, not acidosis. Choice C is incorrect because increased oxygen saturation and tachypnea do not directly cause respiratory acidosis. Choice D is incorrect as dehydration and hypoxia do not typically lead to respiratory acidosis.
2. What should a healthcare professional prioritize when managing a client with delirium?
- A. Administering sedative medication
- B. Providing a low-stimulation environment
- C. Identifying the underlying cause of the delirium
- D. Controlling behavioral symptoms with medication
Correct answer: C
Rationale: When managing a client with delirium, the priority should be to identify the underlying cause of the delirium. Delirium can result from various triggers such as infections, medication side effects, or metabolic imbalances. By determining the root cause, healthcare professionals can provide targeted treatment and improve outcomes. Administering sedative medication (Choice A) could exacerbate delirium as these drugs can worsen confusion. While providing a low-stimulation environment (Choice B) is beneficial, it is not as critical as identifying the cause. Controlling behavioral symptoms with medication (Choice D) should only be considered after identifying and addressing the underlying cause of delirium.
3. A healthcare professional is contributing to the plan of care for a client who is receiving mechanical ventilation. Which of the following interventions should the healthcare professional recommend?
- A. Suction the airway every hour
- B. Keep the head of the bed at 30 degrees
- C. Change the ventilator tubing every day
- D. Administer a bronchodilator every 2 hours
Correct answer: B
Rationale: The correct answer is to keep the head of the bed at 30 degrees. This position helps reduce the risk of aspiration and improves ventilation. Suctioning the airway every hour may lead to mucosal damage and increase the risk of infection. Changing the ventilator tubing every day is not necessary unless there are specific indications to do so, as it can increase the risk of contamination and infection. Administering a bronchodilator every 2 hours is not a standard practice and should be done based on the client's individualized treatment plan.
4. A nurse is planning care for a preschool-age child who is in the acute phase of Kawasaki disease. Which of the following interventions should the nurse include in the plan of care?
- A. Administer scheduled doses of acetaminophen every 6 hr.
- B. Monitor the child's cardiac status.
- C. Administer antibiotics via intermittent IV bolus for 24 hr.
- D. Provide stimulation with children of the same age in the playroom.
Correct answer: B
Rationale: Monitoring cardiac status is crucial during the acute phase of Kawasaki disease because of the potential for coronary artery complications. Acetaminophen may be used for fever management but is not the priority intervention. Antibiotics are not indicated as Kawasaki disease is not caused by a bacterial infection. Providing stimulation in the playroom is important for the child's emotional well-being but does not address the immediate physiological concern of cardiac monitoring.
5. A client with type 2 diabetes mellitus is being taught about insulin administration by a nurse. Which of the following instructions should the nurse include?
- A. Inject insulin into the muscle
- B. Rotate injection sites with each dose
- C. Store insulin at room temperature
- D. Massage the injection site after administration
Correct answer: B
Rationale: The correct instruction that the nurse should include is to rotate injection sites with each dose. This practice is essential to prevent tissue damage and ensure proper insulin absorption. Option A is incorrect because insulin should not be injected into the muscle, but rather into the subcutaneous tissue. Option C is incorrect as insulin should be stored in the refrigerator to maintain its effectiveness. Option D is incorrect as massaging the injection site after administration can lead to faster absorption and potentially hypoglycemia.
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